The Analysis of Circuit Breaker Health Index and the Characteristic Quantity

During circuit breaker risk condition assessment, the most important thing is to calculate the circuit breaker health index (HI). Aiming at the collected data for risk assessment is incomplete or it is not useful for the assessment, this paper analyzed the principle from of the health index calculation process, finding the various characteristics, which has an effect on the health, further more calculated the contribution to the health index, streamlining the data list for assessment. It has an important guiding significance for the future data collection.